#include<stdio.h>
int main()
{
	int num,shiwei,gewei;
	

	scanf("%d", &num);
	if (num != 10 && num != 11 && num != 12&&num!=0) {
		shiwei = num / 10;
		gewei = num % 10;
		if (shiwei == 1)
		{
			switch (gewei) {
			case 3:printf("Thirteen"); break;
			case 4:printf("Forteen"); break;
			case 5:printf("Fifteen"); break;
			case 6:printf("Sixteen"); break;
			case 7:printf("Seventeen"); break;
			case 8:printf("Eighteen"); break;
			case 9:printf("Nineteen"); break;
			}
		}
		else
		{
			switch (shiwei) {
			case 0:break;
			case 2:printf("Twenty"); break;
			case 3:printf("Thirty"); break;
			case 4:printf("Forty"); break;
			case 5:printf("Fifty"); break;
			case 6:printf("Sixty"); break;
			case 7:printf("Seventy"); break;
			case 8:printf("Eighty"); break;
			case 9:printf("Ninety"); break;
			}
			
			switch (gewei) {
			case 1:printf("-"); printf("one"); break;
			case 2:printf("-"); printf("two"); break;
			case 3:printf("-"); printf("three"); break;
			case 4:printf("-"); printf("four"); break;
			case 5:printf("-"); printf("five"); break;
			case 6:printf("-"); printf("six"); break;
			case 7:printf("-"); printf("seven"); break;
			case 8:printf("-"); printf("eight"); break;
			case 9:printf("-"); printf("nine"); break;
			case 0:break;
			}
		}
	}
	else {
		if (num == 12)
			printf("Twelve");
		else if (num == 11)
			printf("Eleven");
		else if (num == 0)
			printf("Zero");
		else
			printf("Ten");
	}

	return 0;


}